The De Ritis and Neutrophil-to-Lymphocyte Ratios May Aid in the Risk Assessment of Patients with Metastatic Renal Cell Carcinoma
Table 4
Comparison of new risk models for progression-free survival using the Heng and MSKCC risk models with 2000 bootstraps.
Model
Harrell’s C index
mean(difference), 95% CI (2.5%, 97.5% of difference)
Model A
0.594
Model B vs A: 0.017 ( -0.021, 0.057)
Model B
0.610
Heng risk model
0.614
Heng vs Model A: 0.034 ( -0.030, 0.103)
Heng vs Model B: -0.009 ( -0.081, 0.058)
MSKCC risk model
0.569
mMSKCC vs Model A: -0.025 (-0.106, 0.054)
mMSKCC vs Model B: -0.042 (-0.127, 0.036)
Heng risk model + DRR
0.639
Heng vs (Heng+DRR): -0.025 ( -0.082, 0.013)
Model C = mMSKCC risk model + AST
0.569
mMSKCC vs Model C -0.013 (-0.052, 0.015)
Model D = mMSKCC risk model + NLR + DRR
0.602
mMSKCC vs Model D: -0.046 (-0.117, 0.002)
Model C vs Model D: -0.033 (-0.102, 0.020)
MSKCC, Memorial Sloan Kettering Cancer Center; AST, aspartate transaminase; NLR, neutrophil-to-lymphocyte ratio; CI, confidence interval. Model A = Nephrectomy, AST. Model B = Nephrectomy, NLR.